Convert liters to US fluid ounces instantly. Uses the exact NIST-defined factor — free, accurate, no sign-up.
Quick Answer: One liter equals 33.814 US fluid ounces. Multiply any liter value by 33.814 to get fl oz. Common values: 0.5 L = 16.91 fl oz · 1 L = 33.81 fl oz · 1.5 L = 50.72 fl oz · 2 L = 67.63 fl oz.
Formula: fl oz = liters × 33.8140226
Fluid Ounces = Liters × 33.8140226
Liters = Fluid Ounces ÷ 33.8140226
The factor 33.8140226 comes directly from the definition: 1 US fl oz = 29.5735295625 ml, therefore 1000 ml ÷ 29.5735295625 = 33.8140226 fl oz per liter. The liter is the same unit worldwide — only the fluid ounce definition differs between US and UK systems.
| Liters (L) | Fluid Ounces (fl oz) | US Cups | Common Reference |
|---|---|---|---|
| 0.1 L | 3.381 fl oz | — | TSA travel limit (100 ml) |
| 0.25 L | 8.454 fl oz | 1 cup + | small glass / metric cup |
| 0.33 L | 11.158 fl oz | — | European beer can (330 ml) |
| 0.5 L | 16.907 fl oz | 2 cups | standard water bottle |
| 0.75 L | 25.361 fl oz | 3 cups | wine bottle |
| 1 L | 33.814 fl oz | 4 cups + | 1-liter bottle |
| 1.5 L | 50.721 fl oz | 6+ cups | large water bottle |
| 2 L | 67.628 fl oz | 8+ cups | soda bottle |
| 3 L | 101.442 fl oz | 12+ cups | — |
| 3.785 L | 128 fl oz | 16 cups | 1 US gallon |
| 4 L | 135.256 fl oz | 17 cups | — |
| 5 L | 169.07 fl oz | 21 cups | — |
| 10 L | 338.14 fl oz | 42 cups | — |
| 20 L | 676.28 fl oz | — | — |
Recipes and nutrition labels often use fractional liters. This table covers the most common values used in cooking and dietary tracking.
| Liters | fl oz | ml | Kitchen note |
|---|---|---|---|
| 0.015 L | 0.507 fl oz | 15 ml | 1 tablespoon |
| 0.06 L | 2.029 fl oz | 60 ml | ¼ cup |
| 0.125 L | 4.227 fl oz | 125 ml | ½ cup (metric) |
| 0.237 L | 8.012 fl oz | 237 ml | 1 US cup |
| 0.25 L | 8.454 fl oz | 250 ml | 1 metric cup |
| 0.473 L | 15.989 fl oz | 473 ml | 1 US pint |
| 0.946 L | 31.978 fl oz | 946 ml | 1 US quart |
When you see a liter value on a beverage container, here is how it translates into everyday US measurements and standard bottle sizes.
| Beverage / Container | Liters | fl oz | Notes |
|---|---|---|---|
| European soda / beer can | 0.330 L | 11.16 fl oz | slightly smaller than US 12 oz can |
| Standard bottled water | 0.500 L | 16.91 fl oz | labeled "16.9 fl oz" in the US |
| Wine bottle (standard) | 0.750 L | 25.36 fl oz | ≈ 5 standard pours of 5 fl oz |
| Magnum wine bottle | 1.500 L | 50.72 fl oz | double standard bottle |
| 1-liter mineral water | 1.000 L | 33.81 fl oz | ≈ 2 US pints + 1.8 fl oz |
| 2-liter soda | 2.000 L | 67.63 fl oz | ≈ 5.6 standard 12 oz cans |
| 5-liter water dispenser | 5.000 L | 169.07 fl oz | ≈ 1.32 US gallons |
Practical shortcut: A 2-liter soda bottle is often treated as equivalent to a half-gallon, but they are different volumes. A half-gallon is 64 fl oz (1.893 L) — a 2-liter bottle holds 67.6 fl oz (3.6 fl oz more). For gallon-based work, use our oz to gallon calculator.
A liter is an internationally standardized unit — the same volume everywhere. The fluid ounce is not. Converting liters to "ounces" produces different numbers depending on whether you mean US fl oz or UK imperial fl oz.
| Liters | US fl oz | UK fl oz | Difference |
|---|---|---|---|
| 0.5 L | 16.907 | 17.598 | 0.69 fl oz |
| 1 L | 33.814 | 35.195 | 1.38 fl oz |
| 1.5 L | 50.721 | 52.793 | 2.07 fl oz |
| 2 L | 67.628 | 70.390 | 2.76 fl oz |
| 4 L | 135.256 | 140.781 | 5.52 fl oz |
All results on this page use the US fluid ounce. If you are following a UK recipe and need to convert a liter value, the fl oz total will be about 4% higher than the US equivalent. For a full breakdown of measurement differences, see our liquid measurement conversion chart.
Daily hydration recommendations from the National Academies are given in liters of total fluid. These are the equivalent fl oz values health and fitness communities commonly reference:
Our daily water intake guide breaks down these recommendations by body weight and activity level with practical bottle-count equivalents.
Conversion factor sourced from the NIST Weights & Measures FAQ — the official US measurement authority.
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